__________ is produced using Polycondensation reaction.
Polythene
Phenol formaldehyde
Poly vinyl chloride
None of these
Correct Answer :
B. Phenol formaldehyde
Related Questions
Pick out the wrong statement.
High early strength cement are made from materials having high silica to lime ratio
The function of gypsum in cement is to enhance its initial setting rate
Acid resistant cements are known as silicate cement
Major component of greyish Portland cement is tricalcium silicate
Teflon is
Phenol formaldehyde
An inorganic polymer
Poly tetra-fluoro-ethylene (P.T.F.E.)
A monomer
Brackish water which contains mostly dissolved salt, can be purified by the __________ process.
Reverse osmosis
Sand filter
Lime soda
Permutit
Glauber's salt is chemically
Calcium sulphate
Potassium sulphate
Potassium chlorate
None of these
Insulin is an __________ drug.
Anti-malarial
Anti-TB
Antibiotic
None of these
Drinking (potable) water treatment does not involve
Coagulation
Sedimentation
Softening
Disinfection
Celluloid is chemically
Cellulose acetate
Regenerated cellulose
Cellulose nitrate
Cellulose acetate butyrate
What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?
Cl2 & Na
Cl2 & H2
O2 & H2
Cl2, H2 & NaOH solution
Oil is a/an
Mixture of glycerides
Mixture of glycerides of fatty acids
Solid at normal temperature
Ester of alcohols other than glycerine
In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the
Diamine and the ring
Dibasic acid and the ring
Diamine and the dibasic acid
None of these
The temperature in the calcium carbide furnace is __________ °C.
200-300
700-850
2000-2200
4000-4500
The process involved in converting rubber into a thin sheet or coating it on fabric is called
Extrusion
Mastication
Calendaring
Vulcanisation
Sizing material is incorporated in paper to
Impart resistance to penetration by liquids
Increase its thickness
Increase its flexibility & opacity
Increase its brightness
Ordinary glass is not a/an
Amorphous isotropic material
Supercooled liquid
Material with sharp definite melting point
Electrical insulator
99.5% purity oxygen is used in
Cutting and welding by oxy-acetylene flame
Hospitals for medicinal purposes
Gas masks and artificial breathing apparatus
All (A), (B), and (C)
Starting material for the production of butadiene in India is
Naphthalene
Benzol
Ethyl alcohol
Phthalic anhydride
The function of gypsum addition during cement making is to
Increase the density of cement
Decrease the cement setting rate
Both (A) and (B)
Neither (A) nor (B)
Oleum produces fumes of
SO2
H2SO4
SO3
SO2 + H2SO4
Dehydrogenation of ethyl benzene produces
Styrene
Naphthalene
Phenol
Benzoic acid
Blue vitriol is chemically
Copper sulphate
Ferrous sulphate
Copper nitrate
Aluminium sulphate
In an integrated steel plant, NH3 present in coke oven gas is normally recovered as
(NH4)2SO4
NH4Cl
(NH4)2 NO3
Liquid NH3
Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?
Xanthates
Stearic acid
Calcium & aluminium stearate
Formic acid
Fish contains about __________ percent oil.
5
10
20
35
Glycerine is recovered from lye by
Evaporation followed by vacuum distillation
Liquid extraction technique
Extractive distillation technique
None of these
Catalytic oxidation of toluene produces
Styrene
Phenol
Benzene
Tri-nitro-toluene
20% oleum means that in 100 kg oleum, there are 20 kg of
SO3 and 80kg of H2SO4
H2SO4 and 80kg of SO3
SO3 for each 100 kg of H2SO4
None of these
__________ is produced using molasses as the starting raw material.
Methyl alcohol
Ethyl alcohol
Benzol
Dimethyl ether
Builders are added in soap to act as
Cleaning power booster
Anti-redeposition agent
Corrosion inhibitor
Fabric brightener
__________ is obtained as a by-product in the manufacture of sodium hydroxide using brine.
Chlorine
Ammonium chloride
Sodium carbonate
Sodium bi-carbonate
During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to
Increase the rate of absorption
Avoid corrosion
Reduce the cooling water circulation rate
None of these